The bottom-up approach results in a more detailed schedule, but itâs also a time-consuming approach compared with the top-down task planning approach. The schedule you create is based on direct input from experts who will be implementing the project; itâs also a useful technique to build teamwork.
Another sort of smell is caused by the acidity of rain. Because of chemicals in the atmosphere, rainwater tends to be somewhat acidic, especially in urban environments. When it comes in contact with organic debris or chemicals on the ground, it can cause some particularly aromatic reactions.
A musty smell in a home is a result of inadequate cleaning, poor or stagnant air circulation, high humidity and possible moisture problems. If you've ever noticed an odd smell coming from old furniture, clothing or books, or in a poorly ventilated area such as the attic or basement, you have a problem with mold, mildew or fungi.